TM 55-1510-220-MTF
determined by reference to maximum cruise speed/ engine acceptance chart (figure 6). Cruise torque must be
attainable without exceeding the 730C TGT limit to be acceptable. Indicated fuel flow must be within 10 and
-25 pounds per hour of chart value. Pilot's and copilot's airspeed indicators will agree within4 KIAS.
1.
Record the following:
*a. Engine serial number
*b. Engine hours since new
*c. Engine hours since overhaul
*2. Airspeed - Refer to chart.
3.
Altitude - Refer to chart.
4.
Power setting - Refer to chart.
5.
Propeller levers - Refer to chart.
6.
Ice vanes - Retracted.
7.
Allow conditions to stabilize for one minute then record the following for each engine being tested:
*a. Airspeed
*b. Pressure altitude
*c. Free air temperature
*d. Propeller RPM
*e. Torque
*f.
N1
*g. TGT (must not exceed 730°)
8.
Repeat for opposite engine.
4-5
